Supplemental Guarantor Information - Unaudited Consolidating Statements of Income (Loss) and Unaudited Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Condensed Financial Statements, Captions [Line Items]
Total revenue	$ 478,588	$ 459,937	$ 1,243,297	$ 1,189,993
Home construction and land sales expenses	399,675	370,367	1,043,041	980,094
Inventory impairments and abandonments	470	11,917	752	15,098
Gross profit	78,443	77,653	199,504	194,801
Commissions	18,773	17,500	48,728	45,856
General and administrative expenses	40,794	40,457	117,282	111,024
Depreciation and amortization	3,307	3,387	9,139	9,434
Operating income	15,569	16,309	24,355	28,487
Equity in income of unconsolidated entities	158	62	213	71
Gain on extinguishment of debt	0	429	(15,563)	(2,030)
Other (expense) income, net	(2,871)	(5,344)	(12,007)	(18,467)
Income (loss) before income taxes	12,856	11,456	(3,002)	8,061
Expense (benefit) from income taxes	5,742	5,349	(1,262)	2,067
Equity in income of subsidiaries	0	0	0	0
Income (loss) from continuing operations	7,114	6,107	(1,740)	5,994
Income (loss) from discontinued operations, net of tax	9	(325)	(101)	(447)
Equity in income of subsidiaries from discontinued operations	0	0	0	0
Net income (loss) and comprehensive income (loss)	7,123	5,782	(1,841)	5,547
Consolidating Adjustments
Condensed Financial Statements, Captions [Line Items]
Total revenue	(24)	(28)	(84)	(128)
Home construction and land sales expenses	(24)	(28)	(84)	(128)
Inventory impairments and abandonments	0	0	0	0
Gross profit	0	0	0	0
Commissions	0	0	0	0
General and administrative expenses	0	0	0	0
Depreciation and amortization	0	0	0	0
Operating income	0	0	0	0
Equity in income of unconsolidated entities	0	0	0	0
Gain on extinguishment of debt		0	0	0
Other (expense) income, net	0	0	0	0
Income (loss) before income taxes	0	0	0	0
Expense (benefit) from income taxes	0	0	0	0
Equity in income of subsidiaries	(22,843)	(19,257)	(52,264)	(43,133)
Income (loss) from continuing operations	(22,843)	(19,257)	(52,264)	(43,133)
Income (loss) from discontinued operations, net of tax	0	0	0	0
Equity in income of subsidiaries from discontinued operations	(9)	325	101	447
Net income (loss) and comprehensive income (loss)	(22,852)	(18,932)	(52,163)	(42,686)
Beazer Homes USA, Inc.
Condensed Financial Statements, Captions [Line Items]
Total revenue	0	0	0	0
Home construction and land sales expenses	21,895	20,080	57,358	49,520
Inventory impairments and abandonments	0	626	0	710
Gross profit	(21,895)	(20,706)	(57,358)	(50,230)
Commissions	0	0	0	0
General and administrative expenses	0	0	0	0
Depreciation and amortization	0	0	0	0
Operating income	(21,895)	(20,706)	(57,358)	(50,230)
Equity in income of unconsolidated entities	0	0	0	0
Gain on extinguishment of debt		429	(15,563)	(2,030)
Other (expense) income, net	(2,934)	(5,406)	(12,231)	(19,471)
Income (loss) before income taxes	(24,829)	(25,683)	(85,152)	(71,731)
Expense (benefit) from income taxes	(9,100)	(12,533)	(31,148)	(34,592)
Equity in income of subsidiaries	22,843	19,257	52,264	43,133
Income (loss) from continuing operations	7,114	6,107	(1,740)	5,994
Income (loss) from discontinued operations, net of tax	0	0	0	0
Equity in income of subsidiaries from discontinued operations	9	(325)	(101)	(447)
Net income (loss) and comprehensive income (loss)	7,123	5,782	(1,841)	5,547
Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	478,588	459,937	1,243,297	1,189,993
Home construction and land sales expenses	377,804	350,315	985,767	930,702
Inventory impairments and abandonments	470	11,291	752	14,388
Gross profit	100,314	98,331	256,778	244,903
Commissions	18,773	17,500	48,728	45,856
General and administrative expenses	40,767	40,435	117,204	110,944
Depreciation and amortization	3,307	3,387	9,139	9,434
Operating income	37,467	37,009	81,707	78,669
Equity in income of unconsolidated entities	158	62	213	71
Gain on extinguishment of debt		0	0	0
Other (expense) income, net	71	63	241	1,006
Income (loss) before income taxes	37,696	37,134	82,161	79,746
Expense (benefit) from income taxes	14,846	17,880	29,890	36,642
Equity in income of subsidiaries	0	0	0	0
Income (loss) from continuing operations	22,850	19,254	52,271	43,104
Income (loss) from discontinued operations, net of tax	17	(322)	(84)	(437)
Equity in income of subsidiaries from discontinued operations	0	0	0	0
Net income (loss) and comprehensive income (loss)	22,867	18,932	52,187	42,667
Non-Guarantor Subsidiaries
Condensed Financial Statements, Captions [Line Items]
Total revenue	24	28	84	128
Home construction and land sales expenses	0	0	0	0
Inventory impairments and abandonments	0	0	0	0
Gross profit	24	28	84	128
Commissions	0	0	0	0
General and administrative expenses	27	22	78	80
Depreciation and amortization	0	0	0	0
Operating income	(3)	6	6	48
Equity in income of unconsolidated entities	0	0	0	0
Gain on extinguishment of debt		0	0	0
Other (expense) income, net	(8)	(1)	(17)	(2)
Income (loss) before income taxes	(11)	5	(11)	46
Expense (benefit) from income taxes	(4)	2	(4)	17
Equity in income of subsidiaries	0	0	0	0
Income (loss) from continuing operations	(7)	3	(7)	29
Income (loss) from discontinued operations, net of tax	(8)	(3)	(17)	(10)
Equity in income of subsidiaries from discontinued operations	0	0	0	0
Net income (loss) and comprehensive income (loss)	$ (15)	$ 0	$ (24)	$ 19